We have egg squatting!

I am so excited because a couple of my hens (Buff Orpington and Rhode Island Red) have started egg squatting in the past week or two! I have been checking for eggs everyday but haven't seen any yet. Anyone have an idea of the range of time before they start laying? I think I remember reading somewhere that it can be anywhere from a couple days to a couple weeks after they start squatting ... is that right?

Awesome! I am hoping in the next week or two we get the first one since they have been doing it for about a week or so now. I thought we had one yesterday because I heard what I thought was the egg song but when I went outside to check ... no egg. Oh well they must have been practicing